1. Lang is a deprecated module. Please remove it for the next version: https://gjs.guide/extensions/review-guidelines/review-guidelines.html#general-advice Learn how to remove Lang from your code: https://gjs.guide/guides/gjs/legacy-class-syntax.html 2. Also do this on disable: ```js client = null; ``` 3. Remove unnecessary `print`s from extension.js file: https://gjs.guide/extensions/review-guidelines/review-guidelines.html#no-excessive-logging If you need any help with your extension you can ask us on: - [GNOME Matrix Channel](https://matrix.to/#/#extensions:gnome.org) - IRC Bridge: irc://irc.gimpnet.org/shell-extensions

Btw, you should use try catch inside that async callback.